Winter is one of the four seasons of temperate zones. North American calendars go by astronomy and state that winter begins on the winter solstice, and ends on the vernal equinox. Calculated meteorologically, it begins and ends earlier (typically at the start of the month with the equinox or solstice) and is the season with the shortest days and the lowest temperatures. Either way, it generally has cold weather and, especially in the higher latitudes or altitudes, snow and ice. Aspects Meteorology Meteorological winter is the season having the shortest days and the lowest temperatures. Nighttime predominates the winter season, and in some regions it has the highest rate of precipitation as well as prolonged dampness due to permanent snow cover in such areas. During winter, Blizzards often develop and cause many transportation delays. A rare meteorological phenomenon encountered during winter is ice fog, which is composed of ice cryst

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